<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Document</title>
</head>
<body>
    <!-- 准备好一个容器 -->
    <div id="test"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入react-dom, 用于支持react操作DOM -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>

    <script type="text/javascript"> /* 此处一定要写babel */
        //1. 创建虚拟DOM
        const VDOM = React.createElement('h1',{id:'title'},React.createElement('span',{},'Hello, React'));
        //2. 渲染虚拟DOM页面
        ReactDOM.render(VDOM,document.getElementById('test'));
    </script>
</body>
</html>